Chemlab Practice learning
By:
Susila Kristianingrum
The knowledge learned through direct contact
with the tool
Individual freedom as the basic learning
Anticipating a natural phenomenon
Ex ercising using words and phrases for object
Develop the intellectual and moral character
of students
Foster research
Managing lab, lab facility, chemicals, lab
administration
Projecting various purposes of lab
Storage & maintenance equipment &
chemicals
Make adjustments to the curriculum
Using a general workshop tools
Perform basic techniques
Planning and organizing the use of lab for
1 year
Organize distribution of tools & materials
lab
Prepare regulations & safety lab for
students and lab personnel
Prepare clear instructions on how to use
special equipment
Determine the mobility of traffic flow in the
practicum student with the benchmark
number of students and lab conditions
Completing P3K box and skilled do first aid
in lab
Task scheduling lab personnel
The
room lab
lab facility
Tools and m aterials
Workforce
lab activities
Format for lab administ rat ion
•
•
•
•
•
•
•
•
Fomat A
Format B1
Format B2
Format B3
Format B4
Format C1
Format C2
Format C3
• Data space lab
cardstock
List of items
List of proposed items
card tool
List of tools
List ing revenues /
expendit ures tool
Format for lab administ rat ion
•
•
•
•
•
•
•
Format C4
Format D1
Format D2
Format D3
Format D4
Format E
Format F
• List of proposed
equipment
• card substance
• List of substances
• List revenue /
expendit ure substances
• List of proposed
substance
• data workforce
• Agenda lab act ivit ies
Room of weight
Room of Analysts
Room of assistant
Room of warehouse
Room of computer
Room of practicum
Room of workshop
Room of electronics
15 m2
20 m2
20 m2
20 m2
20 m2/10 people
4 m2/ people
2,5 m2/ people
20 m2/20 people
Sample Format A
Table 1. Data room Lab. chemical
Lab Name: Basic Chemistry
Area
(m2)&
lab
capacity
Types of
room
Fix area
(m2)
Area
Should
(m2)
200
R.
Practicum
130
160
30
R.
equipment
-
20
Det ails of t he
development
insulat ion space
Name of equipment:
Group
:
Spesification
:
Code No.
:
Location/ RAL
:
measuring glass
G
100 mL,od.2 cm
5 pyrex
1/ 2/ 3
Table 2. Card Tool
Date
Condition
entry
good
1-22006
10
exit
Infor
mation
stock
broken
good
broken
good
-
-
-
10
broken
-
Name of chemical
Group
Spesification
Code No.
Location/ RAL
: Silver nitrat (AgNO3 )
:A
: 100 gram
: 5 E Merck
:1/ 2/ 3
Mr Cu= 63,5; S= 32; O= 16; H= 1
Mr CuSO4 .5H2O= (1x 63,5) + (1x 32) +
(4x 16) + 5[(2x 1) + (1x 16)]= 249,5
Mass of 1 mol CuSO4.5H2O= 249,5 g
So to make a 1 M solution of copper
sulphate is needed as much as 1 liter of
249.5 g CuSO4.5H2O and then dissolved in
water to a volume of 1 liter solution.
In concentrat ed HCl is usually unknown levels
of 36%, density 1.18. Thus the m ass of 1,000
m L of concentrat ed HCl is1.180 g.
In 1180 g of concentrat ed HCl, the am ount of
HCl = 36/ 100 x 1180 g = 424.8 g.
In 1 liter (1,000 m L) 1 M HCl solution contained
1 m ol HCl.
The m ass of 1 m ol HCl = 36.5 g.
So to m ake a 1 M HCl solution required 36.5 g
HCl, contained in concentrat ed HCl = 36.5 /
424.8 x 1,000 m L = 85.9 m L concentrated HCl.
Tape measure
Glue/ lem
Epox y/ super glue
Plastic cement
Brush- teeth
Drinking spook
Terminal block (for joint the cable)
Electric tape
Screw driver/ dual screw
Hammer (besi/ plastic)
Mole trips pliers/ Tang clamp
key ring
Yank/ obeng getar/ pump action screw
Stanley plier/ pemotong kawat
Cutter
driver
Tanks of various sizes
Needle fliers / miser
Knife
Multimeter
Test- pen
cotton yarn
Cotton bud
electric soldering
Volt- meter
Metal cutting saws (with silicon carbide cinpade)
Sandpaper
Fuse sizes
etc.
1. In the Lab. available 16M HNO3 solution
(concentrated). How many mL of
concentrated HNO3 required to make as
much as 100ml of 2M aqueous HNO3 ?
2. In the Lab. available solution of 70%
HNO3 , bj = 1.42 g / mL. How many mL of
concentrated HNO3 required to make as
much as 100ml of 2M aqueous HNO3 ?
(Ar H= 1 , N= 1 4 , O= 1 6, S= 3 2 , Na= 2 3)
3. In the Lab. available solution of 96% H2SO4, bj
= 1.84 g / mL. How many mL of H2SO4
required to make dollars. 2M aqueous H2SO4
as 250 ml?
4. How many grams of NaOH are required to
make NaOH solution: a) 0.1 M b) 0.5 M c) 2M?
(Ar H=1, N=14, O=16, S=32, Na=23)
Susila Kristianingrum
The knowledge learned through direct contact
with the tool
Individual freedom as the basic learning
Anticipating a natural phenomenon
Ex ercising using words and phrases for object
Develop the intellectual and moral character
of students
Foster research
Managing lab, lab facility, chemicals, lab
administration
Projecting various purposes of lab
Storage & maintenance equipment &
chemicals
Make adjustments to the curriculum
Using a general workshop tools
Perform basic techniques
Planning and organizing the use of lab for
1 year
Organize distribution of tools & materials
lab
Prepare regulations & safety lab for
students and lab personnel
Prepare clear instructions on how to use
special equipment
Determine the mobility of traffic flow in the
practicum student with the benchmark
number of students and lab conditions
Completing P3K box and skilled do first aid
in lab
Task scheduling lab personnel
The
room lab
lab facility
Tools and m aterials
Workforce
lab activities
Format for lab administ rat ion
•
•
•
•
•
•
•
•
Fomat A
Format B1
Format B2
Format B3
Format B4
Format C1
Format C2
Format C3
• Data space lab
cardstock
List of items
List of proposed items
card tool
List of tools
List ing revenues /
expendit ures tool
Format for lab administ rat ion
•
•
•
•
•
•
•
Format C4
Format D1
Format D2
Format D3
Format D4
Format E
Format F
• List of proposed
equipment
• card substance
• List of substances
• List revenue /
expendit ure substances
• List of proposed
substance
• data workforce
• Agenda lab act ivit ies
Room of weight
Room of Analysts
Room of assistant
Room of warehouse
Room of computer
Room of practicum
Room of workshop
Room of electronics
15 m2
20 m2
20 m2
20 m2
20 m2/10 people
4 m2/ people
2,5 m2/ people
20 m2/20 people
Sample Format A
Table 1. Data room Lab. chemical
Lab Name: Basic Chemistry
Area
(m2)&
lab
capacity
Types of
room
Fix area
(m2)
Area
Should
(m2)
200
R.
Practicum
130
160
30
R.
equipment
-
20
Det ails of t he
development
insulat ion space
Name of equipment:
Group
:
Spesification
:
Code No.
:
Location/ RAL
:
measuring glass
G
100 mL,od.2 cm
5 pyrex
1/ 2/ 3
Table 2. Card Tool
Date
Condition
entry
good
1-22006
10
exit
Infor
mation
stock
broken
good
broken
good
-
-
-
10
broken
-
Name of chemical
Group
Spesification
Code No.
Location/ RAL
: Silver nitrat (AgNO3 )
:A
: 100 gram
: 5 E Merck
:1/ 2/ 3
Mr Cu= 63,5; S= 32; O= 16; H= 1
Mr CuSO4 .5H2O= (1x 63,5) + (1x 32) +
(4x 16) + 5[(2x 1) + (1x 16)]= 249,5
Mass of 1 mol CuSO4.5H2O= 249,5 g
So to make a 1 M solution of copper
sulphate is needed as much as 1 liter of
249.5 g CuSO4.5H2O and then dissolved in
water to a volume of 1 liter solution.
In concentrat ed HCl is usually unknown levels
of 36%, density 1.18. Thus the m ass of 1,000
m L of concentrat ed HCl is1.180 g.
In 1180 g of concentrat ed HCl, the am ount of
HCl = 36/ 100 x 1180 g = 424.8 g.
In 1 liter (1,000 m L) 1 M HCl solution contained
1 m ol HCl.
The m ass of 1 m ol HCl = 36.5 g.
So to m ake a 1 M HCl solution required 36.5 g
HCl, contained in concentrat ed HCl = 36.5 /
424.8 x 1,000 m L = 85.9 m L concentrated HCl.
Tape measure
Glue/ lem
Epox y/ super glue
Plastic cement
Brush- teeth
Drinking spook
Terminal block (for joint the cable)
Electric tape
Screw driver/ dual screw
Hammer (besi/ plastic)
Mole trips pliers/ Tang clamp
key ring
Yank/ obeng getar/ pump action screw
Stanley plier/ pemotong kawat
Cutter
driver
Tanks of various sizes
Needle fliers / miser
Knife
Multimeter
Test- pen
cotton yarn
Cotton bud
electric soldering
Volt- meter
Metal cutting saws (with silicon carbide cinpade)
Sandpaper
Fuse sizes
etc.
1. In the Lab. available 16M HNO3 solution
(concentrated). How many mL of
concentrated HNO3 required to make as
much as 100ml of 2M aqueous HNO3 ?
2. In the Lab. available solution of 70%
HNO3 , bj = 1.42 g / mL. How many mL of
concentrated HNO3 required to make as
much as 100ml of 2M aqueous HNO3 ?
(Ar H= 1 , N= 1 4 , O= 1 6, S= 3 2 , Na= 2 3)
3. In the Lab. available solution of 96% H2SO4, bj
= 1.84 g / mL. How many mL of H2SO4
required to make dollars. 2M aqueous H2SO4
as 250 ml?
4. How many grams of NaOH are required to
make NaOH solution: a) 0.1 M b) 0.5 M c) 2M?
(Ar H=1, N=14, O=16, S=32, Na=23)